Economics 2024 Paper I 50 marks 150 words Compulsory Differentiate

Q1

Answer the following questions in about 150 words each: (a) Differentiate between perceived demand curve and proportional demand curve in a monopolistic competitive market. Explain why the proportional demand curve is steeper than the perceived demand curve. (10 marks) (b) Discuss critically the phenomenon of classical dichotomy. (10 marks) (c) Show that ad valorem tax is preferable to specific sales tax from a firm's point of view in generating the same level of tax revenue. (10 marks) (d) Examine the role of treasury bills in controlling money supply. (10 marks) (e) Write down the major assumptions behind Neoclassical Loanable Funds Theory of Interest. (10 marks)

हिंदी में प्रश्न पढ़ें

निम्नलिखित प्रत्येक प्रश्न का उत्तर लगभग 150 शब्दों में दीजिए : (a) एक एकाधिकारात्मक प्रतियोगी बाजार में अनुभव किए गए माँग वक्र तथा आनुपातिक माँग वक्र में भेद कीजिए। समझाइए कि अनुभव किए गए माँग वक्र की तुलना में आनुपातिक माँग वक्र क्यों तीव्र ढलान वाला होता है। (10 अंक) (b) प्रतिष्ठित विरोधाभास की घटना की आलोचनात्मक विवेचना कीजिए। (10 अंक) (c) सिद्ध कीजिए कि एक फर्म के दृष्टिकोण से समान स्तर की कर-आय को उत्पन्न करने हेतु विशिष्ट बिक्री कर की तुलना में मूल्यानुसार कर को अधिक प्राथमिकता दी जाती है। (10 अंक) (d) मुद्रा की पूर्ति को नियंत्रित करने में राजकोषीय बिल की भूमिका का परीक्षण कीजिए। (10 अंक) (e) ब्याज के नव-प्रतिष्ठित ऋण-योग्य निधि सिद्धांत की प्रमुख मान्यताओं का विवरण दीजिए। (10 अंक)

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Directive word: Differentiate

This question asks you to differentiate. The directive word signals the depth of analysis expected, the structure of your answer, and the weight of evidence you must bring.

See our UPSC directive words guide for a full breakdown of how to respond to each command word.

How this answer will be evaluated

Approach

Differentiate and critically examine across five microeconomic and monetary theory concepts, allocating approximately 30 words per mark (150 words per sub-part). For (a), begin with clear distinction between perceived (dd) and proportional (DD) demand curves using Chamberlin's monopolistic competition framework; for (b), critically discuss classical dichotomy with reference to Patinkin's real balance effect; for (c), use algebraic proof comparing ad valorem and specific tax equilibria; for (d), examine treasury bills' role through RBI's open market operations; for (e), enumerate loanable funds assumptions with Wicksellian and Fisherian foundations. Structure each answer as: definition → core mechanism → critical evaluation/conclusion.

Key points expected

  • (a) Perceived demand curve (dd) shows individual firm's expectation when changing price alone; proportional demand curve (DD) shows actual market share when all firms change prices together; DD is steeper due to smaller elasticity as substitution possibilities diminish when industry moves together
  • (b) Classical dichotomy separates real and monetary sectors with money as veil; neutrality of money in long run; critique through Patinkin's integration of money and value theory; Keynesian rejection of dichotomy
  • (c) Mathematical proof that ad valorem tax (t) and specific tax (s) yielding equal revenue produce different equilibria; ad valorem preserves more consumer surplus and firm profit; ad valorem preferable as it distorts price-output decision less severely
  • (d) Treasury bills as instrument of monetary control through RBI's OMO; liquidity adjustment facility; sterilization of capital flows; 91-day/364-day T-bills as benchmarks for short-term interest rates
  • (e) Loanable funds theory assumptions: full employment, perfect competition, closed economy, interest as reward for waiting/abstinence, equality of intended saving and investment at equilibrium, no hoarding

Evaluation rubric

DimensionWeightMax marksExcellentAveragePoor
Concept correctness25%12.5Precise definitions of dd/DD curves, correct mathematical derivation for tax comparison, accurate exposition of Patinkin's critique, correct T-bill mechanics, and exact loanable funds assumptions without conflation with liquidity preferenceGenerally correct definitions but conflates dd/DD elasticity reasoning, sketchy mathematical treatment of taxes, descriptive rather than critical treatment of classical dichotomy, incomplete T-bill mechanismsConfuses perceived and proportional curves, fails to prove tax superiority mathematically, describes classical dichotomy without critique, misunderstands T-bills as fiscal rather than monetary instrument, mixes loanable funds with Keynesian theory
Diagram / model20%10Correct Chamberlinian tangency solution diagram with dd and DD curves showing equilibrium; clear tax incidence diagrams comparing ad valorem and specific taxes; loanable funds supply-demand diagram with S=I equilibriumRough sketches without proper labeling, missing tangency condition in monopolistic competition, incomplete tax diagrams without revenue equivalence demonstration, generic interest rate diagramsMissing diagrams where required, incorrect slopes (dd steeper than DD), confused axes labels, no diagrammatic treatment of tax comparison or loanable funds market
Quantitative reasoning20%10Rigorous algebraic proof for tax equivalence: showing ad valorem tax t and specific tax s yield same revenue R with different welfare outcomes; correct elasticity formulas for dd (high elasticity) vs DD (low elasticity); mathematical expression of loanable funds equilibriumVerbal description of quantitative relationships without equations, intuitive but unproven claims about tax superiority, mentions elasticity values without derivationNo quantitative treatment where required, incorrect mathematical relationships, confuses percentage and absolute tax burdens, numerical errors in elasticity comparisons
Indian / empirical examples15%7.5References RBI's T-bill operations under LAF, 91-day/182-day/364-day auction cycles; GST (ad valorem) vs pre-2017 specific excise comparisons; Indian financial market integration of money and real sectors post-1991Generic references to RBI monetary policy without specific T-bill maturities, passing mention of Indian tax structure without analytical linkageNo Indian examples, uses only Western theoretical references, irrelevant examples from other policy domains
Policy implication20%10Clear policy lessons: for (a) implications of excess capacity and product differentiation; for (b) necessity of monetary policy in short-run stabilization; for (c) GST design superiority; for (d) T-bill rates as operating target for monetary transmission; for (e) limitations for developing economies with financial repressionScattered policy observations without systematic derivation from theory, generic statements about monetary policy importanceNo policy implications drawn, purely theoretical treatment, incorrect or contradictory policy conclusions (e.g., advocating specific taxes over ad valorem)

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